blk_trace_ioctl   407 block/compat_ioctl.c 		ret = blk_trace_ioctl(bdev, cmd, compat_ptr(arg));
blk_trace_ioctl   592 block/ioctl.c  		return blk_trace_ioctl(bdev, cmd, argp);
blk_trace_ioctl    34 include/linux/blktrace_api.h extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *);